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AnnyKZ [126]
3 years ago
8

25 points

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
7 0

The answer is most likely D

Step-by-step explanation:

All the other answers show the wrong letter for the children. For example, C. has z for 12 even thought the 12 is supposed to be for y. The same story is for A. and B. makes no sense.

So that leaves us with D(which is the only one that makes sense).

HOPE IT HELPS!!!

PLEASE GIVE ME BRAINLIEST!!!

LenKa [72]3 years ago
6 0

Answer:

5x + 4y + 12z      i dont know what else to write lol

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363 · 62 . 46-4<br> Plsss help solve it :)
Andreas93 [3]

Answer:

1035272

Step-by-step explanation:

4 0
2 years ago
The number of employees per department are normally distributed with a population standard deviation of 198 employees and an unk
cricket20 [7]

Answer:

EBM = +-54.126

Step-by-step explanation:

In this question we have confidence interval to be 80%

The formula to solve this is in the attachment.

Bar X = 1460

Z-alpha/2 = 1.282

Sd = standard deviation = 198 employees

n = 22 departments

After we have inserted all values in to the formula we have:

1460 +-(1.282*198/√22)

= 1460+-(54.12604)

= (1405.87, 1514.126)

The error bounded mean EBM

= +-z-alpha/2 x (sd/√n)

= 1.282 x 198/√22

= 1.282 x 42.22

EBM = +-54.126

6 0
3 years ago
Research studies show that the relationship between the tire pressure of a vehicle's tires and the life of the tires is
algol13

Answer:

i dont know what is that explain that

8 0
3 years ago
So I don't know to solve this <br>​
Kruka [31]

Answer:

A

Step-by-step explanation:

When a slope is undefined, it is always x = ?

The point (-5, -8) tells us that x = -5

Option A also has a point with x = -5

5 0
2 years ago
Find m∠DEC (the picture is not drawn to scale).
pochemuha

Answer:

M∠DEC equals 123º.

Step-by-step explanation:

The sum of a triangle's three angles always equal 180º. The exterior angle, x, equals the two non-adjacent interior angles.

180 - {(x - 45)+(x - 12)} = m∠DEC

m∠DEC + x = 180

<u>(x - 45) + (x - 12) = x</u>

Solving for x:

(x - 45) + (x - 12) = x

x - 45 + x - 12 = x                             Remove parenthesis

2x - 57 = x                                       Combine like terms

2x = x + 57                                      Add 57 to both sides

<u>x = 57</u><u>                                             Subtract x from both sides</u>

Finding m∠D:

x - 45 = ?

<u>57 - 45 = </u><u>12º                                          </u>

Finding m∠C:

x - 12 = ?

<u>57 - 12 = </u><u>45º                                           </u>

<em>** </em><em>(Checking x: 12 + 45 = 57) </em><em>**</em>

<em>Finding </em>m∠DEC:

AC is a straight line, and because straight lines are equivalent to 180º, we subtract 57 from 180:

180 - 57 = 123º

Hope this helps,

❤<em>A.W.E.</em><u><em>S.W.A.N.</em></u>❤

8 0
3 years ago
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